SL1215004AJ

Inrush Current Limiters (ICL) Overview

The SL1215004AJ is an inrush current limiter (ICL) manufactured by Vishay / Ametherm, belonging to the SL12 series. It features a nominal resistance of 15 Ohms with a tolerance of ±15% and supports a maximum steady-state current of 4 Amps. The component utilizes a Negative Temperature Coefficient (NTC) thermistor technology housed in a custom package with a diameter of 13mm. It is designed to withstand inrush energy levels of up to 40 Joules, providing effective circuit protection against high initial current spikes during power-up sequences.

Inrush Current Limiters (ICL) Feature Summary

• Utilizes NTC thermistor technology for dynamic resistance adjustment
• Engineered to absorb high inrush energy up to 40 Joules
• Custom 13mm form factor design for specific application integration

Inrush Current Limiters (ICL) Applications

• Power supply input stages requiring surge protection
• Electronic equipment with capacitive load characteristics
• Circuits necessitating controlled initial current ramp-up

Inrush Current Limiters (ICL) Procurement Notes

Verify the exact physical dimensions and lead configuration against the official datasheet before integration, as the 'CUSTOM' designation indicates non-standard packaging. Confirm that the 15-ohm resistance and 4-amp current rating align with the specific thermal and electrical requirements of the target circuit design to ensure reliable long-term operation.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 15-ohm cold resistance and 4-amp continuous current capacity are required. The 13mm size and 40-joule energy rating make it suitable for applications where standard axial leads may not fit or where higher energy absorption is needed compared to smaller surface-mount alternatives. Ensure the operating temperature range meets the environmental conditions of the final assembly.

Inrush Current Limiters (ICL) Part Context

This part belongs to the SL12 series of inrush current limiters from Vishay / Ametherm. The series is characterized by NTC thermistors designed to protect sensitive electronic components from damage caused by high inrush currents during initial power application. The SL12 series offers various resistance and current ratings to accommodate different power supply designs.

Inrush Current Limiters (ICL) Replacement Considerations

The MS1515004B is a related MegaSurge™ series component with similar 15-ohm resistance but differs in current rating (4.5A) and package size (15mm). Verify compatibility if substituting, as the physical dimensions and thermal characteristics may require PCB layout adjustments.